AList ofB roads inNorthern Ireland.
Routes are listed proceeding North to South or East to West as appropriate.
 |
| Road | From | To | Route |
|---|---|---|---|
| B1 | A25 Market Street,Downpatrick | A2, junction of Strangford Road and Bath Street,Ardglass | St Patrick's Avenue/Killough Road/Ardglass Road/Downpatrick Road |
| B2 | A28 in Loughgilly |
| viaDerrytrasna,Derryadd andDerrymacash toLurgan, then:
|
| B3 | Border (continuingR214 fromN2Castleshane) |
| via Derrynoose,Keady, Tassagh,Markethill,Tandragee, multiplexes with A51 toGilford, then:
|
| B4 | A35 atKesh | A505 atCookstown | viaEderney,Lack, multiplexes with A32 toOmagh,Drumnakilly,Carrickmore andPomeroy |
| B5 | A20 Newtownards Road,Greyabbey | A2 Main Street,Ballywalter | Main Street/Church Street/Ballywalter Road/Greyabbey Road |
| B6 | A49 nearLisburn | A22 atKillyleagh | viaSaintfield, Darragh Cross, Raffrey, Derryboy andShrigley |
| B7 | A2 atWarrenpoint | B6 atShrigley | viaBurren,Mayobridge,Rathfriland, Ballyroney,Moneyslane, Lowtown, Finnis,Dromara,Ballynahinch, Listooder andCrossgar |
| B8 | A25 nearNewry | A25 near Kilcoo | viaMayobridge andHilltown |
| B9 | A26 nearWaringstown | A3 atMagheralin | viaDonaghcloney |
| B10 | B3 atScarva | A25 atRathfriland | viaBanbridge and Annaclone |
| B12 | A52 atCrumlin | A3 atLurgan | viaGlenavy,Lower Ballinderry,Aghalee andAghagallon Originally ran from the A26 in Glenavy to the A3 in Moira. Swapped with the A26 after the M1 was built; the southern end (at Moira) is now part of the B105 after it was bypassed. |
| B13 (defunct) | B39 at Clady Corner | A26 near Crumlin | Upgraded to the western half of theA52 in the late 1920s. |
| B14 | A43 nearCargan | A2 atCushendall | via Tully |
| B15 | B16 nearBallymoney | A2 nearBallintoy | viaArmoy,Ballycastle, Carnduff andBallintoy |
| B16 | B66 atBallymoney | A44 near The Drones | via Dunaghy and Kilraghts |
| B17 | A29 atColeraine | A2 nearBallycastle | via Revallagh andBushmills |
| B18 | B73 atCoagh | A532 atBallymena | viaMoneymore,Loup, Drumenagh,Ballyronan,Toome,Moneyglass and Whiteside's Corner |
| B19 (defunct) | A26 in Ballymena | A6 in Maghera | Renumbered as a portion of theA42 in the mid 1920s. |
| A2 north of Eglinton | Eglinton railway station | Declassified by the late 1940s. | |
| B20 | A2 atCraigavad | B21 atBangor | viaCrawfordsburn |
| B21 | B20 atBangor | A48 west ofDonaghadee | Donaghadee Road/High Bangor Road Originally continued to the A2 in Donaghadee town center, but this became a portion of the A48 in the mid-1920s. |
| B22 (defunct) | A21 Zion Place, Newtownards | B21 atDonaghadee | Upgraded to the A48 in the mid-1920s. |
| B23 | A49, junction of Sloan Street and Saintfield Road,Lisburn | A1, junction of Lisburn Road and Bradbury Place,Belfast | viaHillhall, Ballycarn andBallylesson; Mercer Street/Hillhall Road/Ballylesson Road then Malone Road from its junction with Balmoral Avenue/University Road |
| B24 (defunct) | B6 in Lisburn | A6 in Ballynahinch | Upgraded to the A49 in the mid-1920s. After the A49 was rerouted due to completion of the M1, a 1 mile section west of the M1 became a portion of the B177 and the remainder declassified (now C297). Only the section in Ballynahinch is still part of the A49. |
| B25 | A1 nearDromore | A2 atRostrevor | viaKatesbridge,Rathfriland andHilltown |
| B26 (defunct) | A2 in Newcastle | A1 (now A26) in Banbridge | Upgraded to Class I status as a portion of the A50 in the mid-1920s. |
| B27 | B8 atHilltown | A2 atKilkeel | |
| B28 | A29 at Charlemont | A50 atPortadown | viaArdress and Drumharriff; Garvaghy Road |
| B29 (defunct) | A28 Scotch Street, Armagh | A27 in Tandragee | Upgraded to Class I status as a portion of the A51 in the mid-1920s. |
| B30 | A25 nearCamlough | Border (continues asR179 toKingscourt) | viaLislea,Silverbridge,Creggan,Crossmaglen andCullaville |
| B31 | A29 atArmagh | A29 atNewtownhamilton | viaLisnadill |
| B32 | B3 atKeady | Border (continues asR181 toR178Shercock) | Castleblayney Road via Carnagh |
| B33 (defunct) | B3 near Derrynoose | Border at Bree (continued as the L145) | Became a portion of a rerouted B3 in the 1940s. |
| B34 | A29 atDungannon | B106 at Laghey Corner | Killyman Road |
| B35 | A45 atGranville | A28 at Aughnacloy | viaCarnteel and Greystone |
| B36 | A34 atDonagh | Border (continues asR187 toN54 atMonaghan) | viaRosslea |
| B37 (defunct) | L24 (nowN3) inBelleek | L24 (now N3) nearBelturbet | Section north of Enniskillen was upgraded to Class I status as theA46 in the mid-1920s. The southern section remained a B-road because it did not lead to an approved border crossing, but it became theA509 in the 1960s. |
| Central Belfast | A30 at Stonyford | Created in 1924 or 1925, despite the existence of the other B37. Upgraded to theA501 by the end of the 1920s. | |
| B38 | B12, junction of Main Street and Crumlin Road,Glenavy | A1, junction of Great Victoria Street and Fisherwick Place,Belfast | viaHannahstown; Belfast Road/Hannahstown Road/Upper Springfield Road then Springfield Road from its junction with West Circular Road/Grosvenor Road |
| B39 | A26 Oldstone Road,Antrim | A6 Royal Avenue,Belfast | Seven Mile Straight/Ballyutoag Hill then Woodvale Road/Shankill Road/Peter's Hill/North Street |
| B40 | B74 Main Street,Feeny |
| viaMoneyneany,Draperstown andDesertmartin; Glenedra Road/Moneyneany Road/Derrynoyd Road/Magherafelt Road/Draperstown Road then Rosure Road/Desertmartin Road/Rainey Street
|
| B41 | B40 Old Cross Roundabout,Draperstown | A29 Maghera Road,Tobermore | Tobermore Road/Draperstown Road/Main Street |
| B42 | A6 Glenshane Road nearMaghera | B40 junction of Desertmartin Road and Rainey Street,Magherafelt | via Lisnamuck andTobermore; Lisnamuck Road then Magherafelt Road/Grange Road/Tobermore Road |
| B43 | B4 atPomeroy | A45 atDungannon | viaDonaghmore and Aghareaney |
| B44 | B40 atFeeny | B74 nearFeeny | Altinure Road |
| B45 | A45 atDungannon | Border (continues asR185 toN12 nearMonaghan) | viaEglish andCaledon |
| B46 | A5 atNewtownstewart | A32 atEnniskillen | viaGortin,Rousky, Creggan,Carrickmore,Sixmilecross,Beragh,Seskinore,Fintona,DromoreTrillick,Kilskeery andBallinamallard |
| B47 | B46 atNewtownstewart | B40 atDraperstown | viaPlumbridge,Cranagh, Sperrin andStraw |
| B48 | A5 atNewbuildings | A5 atOmagh | viaDonemana, Ballynamallaght,Plumbridge andGortin |
| B49 | A5 atStrabane andBallymagorry | B74 atClaudy | viaArtigarvan,Donemana and Ballyneaner |
| B50 | A5Omagh western bypass | B72 atCastlederg | viaDrumquin; originally continued north out of Castlederg to the L16 (nowR235) at the border, but this was declassified after the mid-1970s. |
| Unused | |||
| B52 | A42 atPortglenone | A6 atRandalstown | via Chesney's Corner |
| A46 atBelleek | A32 atFlorencecourt | via Drumlisaleen,Garrison andHolywell; duplicate number. Originally ended at Belcoo, but was extended to Florencecourt in 2013. | |
| B53 | A6 atRandalstown | A36 at Moorfields | viaKells and Moorfields |
| B52 atGarrison | Bridge over County River atborder (becomesR282 toManorhamilton) | ||
| Unused | |||
| B55 (defunct) | Portrush railway station | Portrush town center | Ran along Kerr Street; declassified after the A29 was rerouted. |
| B56 | A57 nearBallyclare | A8 at Corr's Corner Roundabout | via Ballypalady |
| B57 (defunct) | A8 atBallynure | A6 atTemplepatrick | Upgraded to Class I status after the 1960s as theA57, probably due to construction of theN2. |
| B58 | A8 atBallynure | A2 atCarrickfergus | Carrickfergus Road/New Line Road/Prospect Road |
| B59 | A36 atBallymena | A2 at Whitehouse | viaDoagh and Ballypalady |
| B60 (defunct) | A26 in Ballymena | A2 in Carnlough | Upgraded to Class I status as a portion of theA42 in the mid-1920s. |
| B61 (defunct) | B60 (now A42) in Ballymena | A2 at Glenariff | Upgraded to Class I status as a portion of theA43 in the mid-1920s. |
| B62 | A2 atPortrush | A26 atBallymena | viaBallybogy,Ballymoney, Finvoy,Rasharkin andCullybackey |
| B63 (defunct) | A26 inCloughmills | A2 atBallycastle | Upgraded to Class I status as a portion of theA44 in the mid-1920s. |
| B64 | A6 atDungiven | A43 at Martinstown | via Brockagh,Garvagh, Kilrea, McLaughlin's Corner,Rasharkin, Glenvale, Glarryford, Clogh and Newtowncrommelin |
| B65 (defunct) | A29 inColeraine | A6 east of Castledawson | Upgraded to Class I status as a portion of theA54 in the mid-1920s. |
| B66 | A37 atLimavady | A2 atBushmills | viaRingsend,Aghadowey, Agivey,Bendooragh, Milltown,Ballymoney, Dervock, Derrykeighan and Castlecat |
| B67 | A29 atColeraine | A44 atBallycastle | viaBallybogy, Derrykeighan, Toberdoney,Moss-Side and The Dry Arch |
| B68 | B69 atLimavady | A6 atDungiven | via Scriggan |
| B69 | B74 atClaudy | A2 near Bellarena | via Crindle |
| B70 | B66 atRingsend | B62 nearRasharkin | viaBallerin; multiplexes with B64 fromGarvagh to McLaughlin's Corner |
| B71 (defunct) | A2 Craigavon Bridge near Derry | Border at Killea | Much of route upgraded to Class I status as a portion of theA40 in the mid-1920s. The section running to Killea was bypassed and declassified, but it became a portion of the B193 a few years later. |
| B72 | A5 atStrabane | B82 nearKilladeas | viaVictoria Bridge,Erganagh,Castlederg, Castlegore,Killen andEderney |
| B73 | A29 atCookstown | Lough Neagh atMoortown | viaDrummullan andCoagh |
| B74 | A6 nearClaudy | A6 atDungiven | viaClaudy, Craigdarragh andFeeny |
| B75 | A29 nearMaghera | B64 atKilrea | viaUpperlands |
| B76 | M1 J10 nearLurgan | B2 Derrymacash Road | Kinnego Embankment |
| B77 | A29 atArmagh | A4 atPortadown | viaLoughgall |
| B78 | A50 atPortadown | A29 atNewtownhamilton | via Teemore,Mullaghbrack,Markethill and Clady Milltown |
| B79 | Bridge Street,Newry | Merchant's Quay,Newry | Dominic Street/Patrick Street/Upper Edward Street/Corry Square |
| B80 | A4 atEnniskillen | B46 atFintona | via Garvary,Tempo and Imeroo |
| B81 | A46 nearDerrygonnelly | A4 nearEnniskillen | viaDerrygonnelly andMonea |
| B82 (defunct) | A32 near Enniskillen Airport | A35 south of Kesh | Renumbered as an eastern extension of the A47 in 2013. |
| B83 | A5 atOmagh | Border (continues asR186 toN54Monaghan) | viaSeskinore,Eskra andClogher |
| B84 | A5 atNewtownstewart | A32 atDromore | viaDrumquin and Milltown |
| B85 | B165 atClady | B72 atStrabane | Urney Road |
| B86 | B66 atDervock | B67 at Toberdoney | Toberdoney Road |
| Unused | |||
| B88 (defunct) | B126 North Queen Street,Belfast | A2 York Street,Belfast | Frederick Street; now part of theA11. |
| Unused | |||
| B90 | A8 at Mossley | near Ballylumford | viaGreenisland,Ballycarry and Ballylumford |
| Unused | |||
| B92 | A2 Loughareema Road | A2 Tromra Road | viaCushendun |
| B93 | B52 atRandalstown | A26 atCloughmills | via Whiteside's Corner,Ahoghill,Cullybackey, Craigs and Glarryford |
| B94 | A26 atCloughmills | B95 atBallyclare | viaCloughmills,Clogh, McGregor's Corner, Quarrytown,Broughshane and Five Corners |
| B95 | B518 atAntrim | viaParkgate,Doagh andStraid | |
| B96 | B64 atRasharkin | B93 atCullybackey | via Aughnacleagh,Portglenone and Dreen |
| B97 | A42 at The Sheddings | A2 atGlenarm | Munie Road/Straidkelly Road |
| B98 | A26 nearBallymena | B59 at Chapeltown | viaKells,Connor |
| B99 | B58 nearStraid | A2 atGlynn | viaBallynure |
| B100 | B99 near Glenoe | A8 at Kilwaughter | Ballyrickard Road |
| B101 | A26 Nutts Corner Roundabout | A30Lisburn | viaDundrod and Hillview |
| B102 | A512 at Derriaghy | A501 Falls Road,Belfast | Stewartstown Road/Andersonstown Road/Falls Road |
| B103 | A1 atLambeg | B23 atDrumbeg | Ballyskeagh Road |
| B104 | B12 atLower Ballinderry | A3 Moira Road,Lisburn | viaUpper Ballinderry and Ballymave |
| B105 | B12 atAghalee | A3 atMoira | Soldierstown Road/Station Road |
| B106 | B128 atBenburb |
| viaMoy, Laghey Corner and Kingave |
| B107 | B80 nearTempo | A4 atFivemiletown | viaClabby |
| B108 | A32 Swanlinbar Road | A509 Derrylin Road | viaKinawley |
| B109 (defunct) | A2 in Clandeboyle | A48 at Six Road Ends | Declassified by the late 1940s. |
| B110 (defunct) | A28 east of Caledon | A3 inMiddletown | Renumbered to B210 by the mid-1940s for unknown reasons. |
| B111 | B77 atLoughgall | A51 atHamiltonsbawn | viaRichhill |
| B112 | B133 Millvale Road | A25 Camlough Road | throughBessbrook |
| B113 | B134 atForkhill | A1 at Newry | viaDromintee andMeigh |
| B114 | B3 nearMarkethill | A27 atPoyntzpass | Tannyoky Road via Eleven Lane Ends and Loughgilly |
| B115 | B45 nearBenburb | A29 Railway Street,Armagh | Battleford Road |
| Unused | |||
| B117 (defunct) | Bessbrook | Newry | |
| B118 | A6 nearDrumahoe | A2 nearEglinton | via Eglinton |
| B119 | A2 nearCastlerock | A2 near Castlerock | Spur off the A2 to Castlerock |
| Unused | |||
| B121 (defunct) | B43 in Donaghmore | A4 in Parkanaur | Declassified by the 1940s. |
| B122 | B83 nearOmagh | A4 atFivemiletown | viaFintona |
| B123 | A32 atIrvinestown | B46 atKilskeery | Old Junction Road |
| B124 (defunct) | A25 west of Newry | B78 in Markethill | The section from Newry to Enagh is now part of the B133, the section from Whitecross to Markethill is now part of the B134, and the central section declassified (later C214). |
| B125 (defunct) | A2 in Donard Park, Newcastle | A50/T2 in Newcastle | Now part of the A2 one-way system. |
| B126 | A1, junction of College Square East and Wellington Place,Belfast | A2 York Road,Belfast | College Square East/College Avenue/Millfield/Carrick Hill/North Queen Street |
| B127 | A34 atLisnaskea | Border (continues asR205 toR199 near Newtowngore) | - |
| B128 | A5 atAughnacloy | A29 near Allistragh | viaBenburb andBlackwatertown |
| Unused | |||
| B130 | B45 at Greystone | B128 atBenburb | Derryfubble Road |
| B131 | B106 at Tamnamore | B3 near Clare | viaKilmore,Richhill and Milltown |
| B132 | A3 nearMiddletown | A29 at Keady | Madden Road |
| B133 | A28 atMarkethill | A25 atBessbrook | viaMountnorris |
| B134 | B78 nearMarkethill | B113 atForkhill | viaWhitecross,Lislea andMullaghbawn |
| B135 | A29 nearNewtownhamilton | B30 atCrossmaglen | viaCullyhanna |
| B136 | A47 nearBoa Island | Border (continues toR232 atPettigo) | - |
| Unused | |||
| B138 (defunct) | B37 in Bellanaleck | Bridge over the Cladagh River | Declassified by 1946 (now C438). A 1939 map shows the route ending at the Cladagh River, but this is probably a map error and the route likely continued to the border with County Cavan near Belcoo. If this is the case, the western end is now part of the B52. |
| Unused | |||
| B140 | B80 nearTempo | B514 at Ballindarragh | viaLisbellaw |
| B141 (defunct) | B140 northeast of Lisbellaw | B80 south of Tempo | Now part of a rerouted B140. |
| B142 (defunct) | B108 southeast of Kinawley | B37 (now A509) | Declassified by 1946 (now C434). |
| B143 | A34 atNewtownbutler | L2101 in Summerhill | viaMagheraveely; originally continued to the B36 west of Rosslea, but this section was downgraded in 2013 and is now the C707. |
| Unused | |||
| B145 | A2 nearPortballintrae | A2 nearBushmills | throughPortballintrae |
| B146 | A2 at Bushmills | A2 at Dunseverick | via Giant's Causeway |
| B147 | B62 atBallymoney | A2 nearBushmills | via Kirkhills,Stranocum, The Dry Arch and Lagavara; and Causeway Road viaDunseverick |
| B148 | A8 near Larne | A2 at Drumnagreagh Port | viaCarncastle |
| B149 | A2 atKilroot | B99Glenoe | via Beltoy |
| B150 | A2 atWhitehead | B90 atMullaghboy | viaBallystrudder |
| Unused | |||
| B152 (defunct) | A6 High Street, Antrim | A6/A26 in Antrim | via Antrim railway station; declassified after the 1970s. |
| B153 (defunct) | B95 near Parkgate | A26 in Aldergrove | via Dunadry; reduced to a spur by 1946, running from the then-B101 (now A26) to an unclassified road near Killead. The western end is now gone, lost under Belfast International Airport while the remainder is now part of the A57. Much of the route was declassified (now C110). |
| B154 | A52 nearDundrod | B38 near Hannahstown | viaDundrod |
| B155 (defunct) | A52 Nutts Corner Road northeast of Crumlin | A26 Crumlin Road north of Crumlin | Declassified in the 1970s, probably when the A26 was rerouted. |
| B156 | B12 atAghagallon | B12 atGlenavy | viaGawley's Gate |
| Unused | |||
| B158 | B4 at Omagh | B46 atBeragh | Donaghanie Road |
| Unused | |||
| B160 | B4 atPomeroy | A31 atMagherafelt | viaStewartstown,Coagh,Ballinderry andBallyronan |
| B161 | B520 atCoalisland | B160 at Derrycrin | via Killeen, Mourne View and The Diamond |
| B162 | B40 nearMoneyneany | A29 atCookstown | via Labby and Churchtown |
| B163 (defunct) | A32 (now B46) north of Trillick | A5 at Curr | Declassified by 1946. |
| B164 | B72 nearSpamount | B164 atNewtownstewart | viaArdstraw |
| B165 | B85 atClady | A5 atNewtownstewart | via Kennystown,Victoria Bridge andDouglas Bridge |
| B166 (defunct) | B50 (now unclassified) Kilclean Road in Castlederg | L16 at Grousehall | Declassified by 1946 (now C675). |
| Unused | |||
| B168 | B122 in Fintona | A4 in Clogher | |
| Unused | |||
| B170 | B505 Holywood Road,Belfast | A2 Belfast Road nearBangor | Belmont Road/Ballymiscaw Road/Whinney Hill/Craigantlet Road/Ballysallagh Road |
| Unused | |||
| B172 | A48 atNewtownards | A2 atMillisle | Movilla Road/Ballyblack Road East/Moss Road |
| B173 | A20 atKircubbin | A2 atCloghy | via Rubane |
| Unused | |||
| B175 | A24 atBallynahinch | A25 atAnnsborough | viaSpa and Drumaroad |
| B176 | A25 atDownpatrick | A2 toKillough | via Ballygilbert |
| B177 | A1 at Hillsborough | A49 atBallynahinch | viaAnnahilt |
| B178 | B177 atHillsborough | A21 nearComber | viaCarryduff and Moneyrea |
| Unused | |||
| B180 | B27 atHilltown | viaBryansford | |
| B181 | B160 nearMagherafelt | Coagh | viaThe Loup |
| B182 | A42 atGulladuff | A6 nearToome | viaBellaghy |
| B183 | A6 at Randalstown West junction | A6 at Drumderg Roundabout,Toome | Moneynick Road |
| Unused | |||
| B185 | A2 in Portstewart | A29 in Coleraine | |
| B186 | A37 atMacosquin | B66 atRingsend | Cashel Road |
| B187 (defunct) | A29 in Coleraine | B66 inAghadowey | Declassified by 1946, but returned to Class II status as a portion of the B207. |
| B188 | B66 atAghadowey | B207 atAghadowey | Ballygawley Road |
| B189 (defunct) | A2 in Portrush | B17 in Coleraine | Paralleled the A29; declassified in the early 1930s (now C535). |
| B190 | B70 atRingsend | B64 atGarvagh | Belraugh Road |
| Unused | |||
| B192 | B69 atLimavady | A6 atDungiven | Drumrane Road |
| B193 | A40 at Nixons Corner | Border atKillea (continues asR237 toN13) | - |
| B194 | A2 Buncrana Road,Derry | B521 Glengalliagh Park,Derry | Racecourse Road |
| B195 (defunct) | Blacklion | Mucklagh | Became a portion of the A52 in 2013. |
| B196 | B106 at Tamnamore | M1 Junction 12 | via Mullenakill,Maghery andThe Birches |
| B197 | A2 Main Street,Bangor | B511 Groomsport Road,Bangor | Hamilton Road/Ballyholme Road/Ballyholme Esplanade/Sheridan Drive |
| B198 | A2 Belfast Road,Holywood | A2 Bangor Road,Holywood | Holywood High Street |
| Unused | |||
| B201 | A2 nearLimavady | A29 atColeraine | Windyhill Road, Carthall Road |
| B202 | A2 near Balarena | Magilligan Point | Point Road |
| Unused | |||
| B205 | B23 Ballylesson Road, Drumbeg | B23/A55 Milltown Road | Purbysburn Hill/Hospital Road |
| B206 (defunct) | A4 in Enniskillen | A32 in Drumcoo | Not shown on the 1926 or 1929 maps, but was in existence by 1946, probably gaining its number upon completion. Now upgraded to a portion of the A32. |
| B207 | A29 at Ballylintagh | A54 at Agivey | Moneybrannon Road/Mullaghinch Road |
| B208 (defunct) | B205 in Newtownbreda | Shaw's Bridge, B23 | Upgraded to a portion of the A55. |
| Unused | |||
| B210 | A28 atCaledon | A3 atMiddletown | Coolkill Road |
| B500 (defunct) | Antrim Road,Belfast | Woodvale Road, Belfast | Became a portion of the A52 in the mid-1920s. |
| B501 | A55 North Circular Road,Belfast | A2, junction of York Road and York Street,Belfast | Cavehill Road/Limestone Road |
| B502 | A55 Ballysillan Road,Belfast | A501, junction ofFalls Road and Divis Street,Belfast | Oldpark Road/Agnes Street/Northumberland Street |
| B503 | B126, junction of College Avenue and College Square East,Belfast | A1 Lisburn Road,Belfast | College Square North/Durham Street/Sandy Row |
| B504 (defunct) | B503 Sandy Row,Belfast | A42 Ormeau Road, Belfast | Declassified after the 1960s. |
| B505 | Woodstock Road,Belfast | A55, junction of Holywood Road and Parkway,Belfast | Beersbridge Road/Holywood Road |
| B506 | A23 Short Strand,Belfast | A24 Ormeau Road,Belfast | Short Strand/Ravenhill Road |
| B507 | A2 Branch Roundabout,Derry | A2 Carlisle Circus,Derry | Branch Road/Northland Road/Francis Street/Fahan Road/Lecky Road/Barrack Street/Abercorn Road |
| B508 (defunct) | A2 at the Craigavon Bridge, Derry | B71 in Derry | The section along Abercorn Street is now part of a rerouted B507 and the remainder unclassified. |
| Unused | |||
| B510 (defunct) | B69 south of Crindle | Limavady Junction railway station | Declassified in 1976 after the station closed. |
| B511 | B21 Donaghadee Road,Bangor | A2 junction of Donaghadee Road and Groomsport By-Pass,Groomsport | Groomsport Road/Bangor Road/Main Street/Donaghadee Road |
| Unused | |||
| B513 | A6Antrim Road, Whitehouse | A2 Shore Road, Whiteabbey | O'Neill Road/Station Road |
| B514 | A4 atTamlaght | A34 atLisnaskea | via Carry Bridge and Drumbughas North; formerly a portion of the A34 before it was rerouted over the A39 to Maguiresbridge. |
| Unused | |||
| B517 | A29 Moy Road,Moygashel | B34 Killyman Road, Laghey Corner | Far Circular Road |
| B518 | A26 Ballymena Road,Antrim | A6 Belfast Road, Antrim | Stiles Way/Ballycraigy Road |
| Unused | |||
| B520 | A29 atCookstown | A45 atCoalisland | viaTullyhogue andStewartstown |
| B521 | A2 Branch Roundabout,Derry | A515 Madam's Bank Road,Derry | Glengalliagh Road |
| B523 | A2 Limavady Road,Derry | A6 Glendermott Road,Derry | Clooney Terrace/Simpson's Brae and Irish Street/Belt Road |
| B524 | B507 Northland Road,Derry | A2 Buncrana Road,Derry | Lone Moor Road/Infirmary Road/Clarendon Street |
| B525 | B507 Northland Road,Derry | A2 Buncrana Road,Derry | Duncreggan Road/Pennyburn Pass |
| B526 | B194 Racecourse Road,Derry | A2 Culmore Road,Derry | Greenhaw Road |
| B527 | B507 Northland Road,Derry | B507 Lecky Road,Derry | Springtown Road/Creggan Road/Great James Street/Little James Street/Rossville Road |
| B528 | A2 Foyleside Roundabout,Derry | Whittaker Street,Derry | Foyle Street |
| B529 | B524 Infirmary Road,Derry | B527 Little James Street,Derry | Great James Street |
| B530 | A6 Glendermott Road,Derry | A514 Crescent Link,Derry | Rossdowney Road |
| Unused | |||
| B533 | A34 atNewtownbutler | A3 (N54) atWattlebridge | The entire stretch of the B533 is officially called the Wattlebridge Road. It formerly formed part of the main road fromEnniskillen to Dublin, viaCavan Town. Formerly a portion of the A34 before it was rerouted towards Clones.[1][2] |
| B534 | B82 atLisnarick | A32 atIrvinestown | Lisnarick Road |
| B535 | B80 atTempo | A4 atMaguiresbridge | - |
| B536 | B72 atStrabane | B47 atPlumbridge | - |
| Unused |